# Units vs CraftCalc

Units and CraftCalc both sit at 4.9 stars, but that hides the real split: 100% of CraftCalc's written reviews are positive against 45% of Units's. CraftCalc also leads on in-app purchases (none vs 3). Units's advantage is price (Free vs $3.99) and ratings volume (262 vs 2). On rating, ads and iOS requirement there is nothing between them.

Units is free to download; CraftCalc costs $3.99 up front. Units sells 3 in-app purchases, starting at $0.99 per month. CraftCalc asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Units against 5.0 for CraftCalc. That said, the two scores are not equally well evidenced: Units has 262 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 45% of Units's written reviews are positive against 100% of CraftCalc's.

Units ships an update every 5 weeks, CraftCalc every 5 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Units | CraftCalc |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [4.9 (262 ratings)](https://appshunter.io/ios/app/units-unit-converter/id1527329982/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/craftcalc/id6740346446/reviews)** |
| Number of ratings | **262** | 2 |
| Positive reviews | 45.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 3 MB | 30 MB |
| Requires iOS | **15.0** | 15.3 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andreas Maier](https://appshunter.io/developer/454364359) | [Yong Tze Chi](https://appshunter.io/developer/1789609348) |

## What reviewers say

### Units

[App page](https://appshunter.io/ios/app/units-unit-converter/id1527329982)

Easily convert between a wide range of measurement units and currencies. Features a clear and simple interface for quick conversions of length, mass, volume, speed, and more. Supports popular currencies and common units for everyday use.

**Highlights:** Extensive unit conversions, Multiple currency support, Easy and clear handling, Converts length, mass, volume, Supports speed, area, pressure, Converts time and temperature

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $4.99 | per year |
| One time purchase | $9.99 | one-time |


### CraftCalc

[App page](https://appshunter.io/ios/app/craftcalc/id6740346446)

This app simplifies fractional and mixed-number calculations for makers, woodworkers, and builders. It offers seamless fraction arithmetic and precision measurement tools with an easy-to-use interface. Supports both inches and metric units for accurate project planning.

**Highlights:** Fractional addition, subtraction, multiplication, division, Precision measurement tools for length, Intuitive and fast user interface, Inches and metric unit conversion, Support for mixed numbers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Units free?

Units is free to download, with in-app purchases available.

### Is CraftCalc free?

CraftCalc costs $3.99, with no in-app purchases.

### Which has better reviews, Units or CraftCalc?

CraftCalc is rated higher. Units averages 4.9 out of 5 from 262 ratings, while CraftCalc averages 5.0 from 2 ratings.

### Do Units or CraftCalc have ads?

Neither Units nor CraftCalc shows ads.

### Which is updated more often, Units or CraftCalc?

Units ships an update every 5 weeks, and CraftCalc every 5 months. Most recently, Units was updated on October 23, 2026 and CraftCalc on October 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*